package com.ruoyi.framework.config;

import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.enums.UserStatus;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.framework.web.service.SysPermissionService;
import com.ruoyi.framework.web.service.UserDetailsServiceImpl;
import com.ruoyi.system.service.ISysUserService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

import java.util.Set;

public class UsernamePasswordAuthenticationProvider implements AuthenticationProvider {

    private static final Logger log = LoggerFactory.getLogger(UsernamePasswordAuthenticationProvider.class);

    @Autowired
    private ISysUserService userService;

    @Autowired
    private SysPermissionService permissionService;

    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        String username = (authentication.getPrincipal() == null) ? "NONE_PROVIDED" : authentication.getName();
        String password = (String) authentication.getCredentials();

        SysUser user = userService.selectUserByUserName(username);
        if (StringUtils.isNull(user))
        {
            log.info("登录用户：{} 不存在.", username);
            throw new ServiceException("登录用户：" + username + " 不存在");
        }
        else if (UserStatus.DELETED.getCode().equals(user.getDelFlag()))
        {
            log.info("登录用户：{} 已被删除.", username);
            throw new ServiceException("对不起，您的账号：" + username + " 已被删除");
        }
        else if (UserStatus.DISABLE.getCode().equals(user.getStatus()))
        {
            log.info("登录用户：{} 已被停用.", username);
            throw new ServiceException("对不起，您的账号：" + username + " 已停用");
        }
        UserDetails loginUser = createLoginUser(user);
        UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(loginUser, authentication.getCredentials(), loginUser.getAuthorities());

        BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();

        System.out.println(bCryptPasswordEncoder.matches(user.getPassword(), password)) ;

        return authenticationToken ;
    }

    @Override
    public boolean supports(Class<?> aClass) {
        return true;
    }

    public UserDetails createLoginUser(SysUser user)
    {
        return new LoginUser(user.getUserId(), user.getDeptId(), user, permissionService.getMenuPermission(user));
    }
}
